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Mr J. A. Hill (Vice-president) (I. G. Doran & Partners) As one of Mr McQuillan’s principal competitors in Belfast, I would like to make some general comments.
This paper presents the background to the third edition of the British Ports Association (BPA) heavy duty pavement design manual, published in 1996. It describes a radically new way of analysing pavements which is incorporated in the design method. It includes a design chart which can be used to proportion the courses of heavy duty pavements. It describes materials used commonly in heavy duty pavements and explains the special nature of loads encountered on heavy duty pavements. Professor J. Knapton
Brittle fracture: BS 5950, para. 126.96.36.199 Two members have responded to Mr A.L. Bruder's query in Verulam, 17 February 1998. Rod Gibbons writes from London NW3: I am sympathetic to Mr Bruder who needs to determine Charpy requirements using 188.8.131.52 of BS 5950. I suspect that impact strength of structural steels is seldom a concern in the UK, which may explain the poor coverage in BS 5950, BS 4360, and the BS EN which is replacing that. Not knowing the plate thicknesses or yield strengths concerned, I can comment only generally.